The total damage of a shot fired from a Bow is calculated by adding the its damage to the Arrow's damage, and then applying any available bonuses from other equipment and/or buffs. Arrows travel in an arc and start to drop after proximately 12 blocks. Arrows also pass through platforms.

The highest damage that can be dealt with a Repeater as of 1.2.1 is ~132* (Stake Launcher (80) with Cursed Arrow (14), Archery Potion (+20% arrow damage), Ranger Emblem (+15% total damage), and Necro Armor (+24% damage from full set)).